Movable vacuum precooler

Abstract

The utility model discloses a movable vacuum pre-cooler, and relates to the technical field of vacuum pre-coolers. The movable vacuum precooler comprises a moving structure, the moving structure comprises a moving base, and a refrigerating unit, a pneumatic system, a hydraulic system, a vacuum system, a condenser and a cold trap module are arranged at the top end of the moving base; according to the movable vacuum pre-cooler, the movable structure is arranged, the movable base can drive the whole pre-cooler to horizontally slide, a transmission structure in a driving box is matched, a rack can be driven to ascend and descend through a gear rotating shaft, the rack can drive a grounding plate to gradually make contact with the ground, and the movable base is supported away from the ground; the pre-cooler is positioned after being moved, and the whole moving process does not need to be carried by multiple persons any more, so that the whole moving process is time-saving and labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum precooling machines, in particular to a movable vacuum precooling machine. Background Art

[0002] The vacuum precooler is a cooling processing equipment that uses vacuum precooling technology and uses a vacuum pump to extract air and water vapor in the vacuum tank to reduce the air pressure in the vacuum box. Under low air pressure, the boiling point of water decreases, the latent heat of evaporation increases, and the free water on the surface of the cooled object vaporizes, taking away its own and environmental heat to achieve a cooling effect. There are four common cooling methods: air cooling, water cooling, ice cooling and vacuum precooling. The first three cooling methods are mainly driven by temperature difference, and heat is released from the surface of the external object by convection. The heat is transferred from the center of the object to the outer surface through heat conduction. Therefore, the temperature distribution shows a gradually decreasing trend from the center of the object to the outer surface. The essential difference between vacuum precooling and the first three is the difference in heat transfer mechanism. It reduces the air pressure of the vacuum box to cause the water on the surface of the object to vaporize and absorb heat to take away heat, so the temperature distribution is uniform from the center to the surface of the object.

[0003] After searching, it is proposed in a movable vacuum precooler with patent publication number CN216048679U that "the utility model redesigns the structure of the existing vacuum precooler, divides the device body into a box body and a unit frame, optimizes the structural design, makes the volume of the vacuum precooler smaller, and does not need to be connected to the foundation, thereby solving the problem that the existing vacuum precooler cannot be used during movement";

[0004] However, the above scheme still has certain shortcomings in actual use. In this scheme, the volume of the vacuum precooler is reduced to achieve the effect of facilitating mobility. However, in this scheme, multiple workers are still required to carry the vacuum precooler together, which makes the entire moving process time-consuming and labor-intensive. In addition, manual transportation may pose other safety threats to the workers, such as equipment falling. Utility Model Content

[0005] The utility model provides a movable vacuum precooling machine to solve the problems in the background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a movable vacuum precooler, comprising a mobile structure, the mobile structure comprising a mobile base, the top of the mobile base is provided with a refrigeration unit, a pneumatic system, a hydraulic system, a vacuum system, a condenser and a cold trap module;

[0007] A drive box is provided at the bottom end of the movable base through an installation recess, and the inner wall of the drive box is rotatably connected to two gear shafts through a transmission structure, and two racks are meshed on the outer side of the gear shafts, and the bottom ends of the four racks all extend to the bottom of the drive box, and a contact plate is fixedly installed between the bottom ends of the four racks.

[0008] Furthermore, the refrigeration unit includes a refrigeration compressor, a shock absorber pipe, an oil separator, an oil line filter, a gas-liquid separator, a heat preservation device, a liquid storage tank, a solenoid valve, an expansion valve and a pressure switch; the pneumatic system includes an air compressor, a pneumatic baffle valve and a pneumatic ball valve; the hydraulic system includes a hydraulic pump station, a high-pressure oil pipe and a bidirectional hydraulic cylinder.

[0009] Furthermore, the vacuum system includes a vacuum pump, a filter, a shock absorber pipe, a connecting pipe and a connecting flange, the condenser includes a finned heat exchanger, a blower and a fan, and the cold trap module includes a cold trap evaporator, a cover plate inside the box, an air outlet channel, an air inlet channel and a drainage channel formed by the cold trap evaporator and the cover plate.

[0010] Furthermore, a vertical rod is fixedly mounted on the inner wall of the driving box, and the interior of the vertical rod is slidably connected to the inner wall of the rack.

[0011] Furthermore, an electric push rod is fixedly mounted on the inner wall of the driving box, and a toothed plate is fixedly connected to the movable end of the electric push rod.

[0012] Compared with the prior art, the utility model provides a movable vacuum precooling machine, which has the following beneficial effects:

[0013] The movable vacuum precooler is provided with a movable structure, and a movable base is used to drive the entire precooler to slide horizontally. The transmission structure inside the drive box can drive the rack to move up and down through the gear shaft, so that the rack can drive the contact plate to gradually contact the ground and lift the movable base off the ground, so that the precooler is positioned after the movement is completed, and the entire moving process no longer requires multiple people to carry it, making the entire moving process time-saving and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the mobile structure of the utility model;

[0016] Figure 3 It is a schematic diagram of a drive box of the utility model.

[0017] In the figure: 1. Mobile structure; 101. Mobile base; 102. Mounting recess; 103. Drive box; 104. Transmission structure; 105. Gear shaft; 106. Rack; 107. Vertical rod; 108. Electric push rod; 109. Tooth plate; 110. Touch floor; 2. Refrigeration unit; 3. Pneumatic system; 4. Hydraulic system; 5. Vacuum system; 6. Condenser; 7. Cold trap module. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3 The utility model discloses a movable vacuum precooler, comprising a movable structure 1, wherein the movable structure 1 comprises a movable base 101, and a refrigeration unit 2, a pneumatic system 3, a hydraulic system 4, a vacuum system 5, a condenser 6 and a cold trap module 7 are arranged on the top of the movable base 101;

[0020] A driving box 103 is provided at the bottom end of the movable base 101 through a mounting recess 102. The inner wall of the driving box 103 is rotatably connected to two gear shafts 105 through a transmission structure 104. Two racks 106 are meshed on the outer sides of the gear shafts 105. The bottom ends of the four racks 106 all extend to the bottom of the driving box 103, and a contact plate 110 is fixedly installed between the bottom ends of the four racks 106.

[0021] By setting up the mobile structure 1, the mobile base 101 can be used to drive the precooler as a whole to slide horizontally, and then the transmission structure 104 inside the drive box 103 can drive the rack 106 to move up and down through the gear shaft 105, so that the rack 106 can drive the contact plate 110 to gradually contact the ground and lift the mobile base 101 off the ground, so that the precooler is positioned after the movement is completed, and the entire moving process no longer requires multiple people to carry it, making the entire moving process time-saving and labor-saving.

[0022] Specifically, the refrigeration unit 2 includes a refrigeration compressor, a shock absorber pipe, an oil separator, an oil line filter, a gas-liquid separator, a heat preservation device, a liquid storage tank, a solenoid valve, an expansion valve and a pressure switch; the pneumatic system 3 includes an air compressor, a pneumatic baffle valve and a pneumatic ball valve; the hydraulic system 4 includes a hydraulic pump station, a high-pressure oil pipe and a bidirectional hydraulic cylinder; the vacuum system 5 includes a vacuum pump, a filter, a shock absorber pipe, a connecting pipe and a connecting flange; the condenser 6 includes a finned heat exchanger, a blower and a fan; the cold trap module 7 includes a cold trap evaporator, a cover plate inside the box, an air outlet channel, an air inlet channel and a drainage channel formed by the cold trap evaporator and the cover plate.

[0023] In this embodiment, the refrigeration unit 2, pneumatic system 3, hydraulic system 4, vacuum system 5, condenser 6 and cold trap module 7 are all controlled by PLC, and the working principles of the refrigeration unit 2, pneumatic system 3, hydraulic system 4, vacuum system 5, condenser 6 and cold trap module 7 have been described in detail in a movable vacuum pre-cooling machine in CN216048679U, and will not be elaborated here.

[0024] Specifically, a vertical rod 107 is fixedly mounted on the inner wall of the driving box 103 , and the interior of the vertical rod 107 is slidably connected to the inner wall of the rack 106 .

[0025] In this embodiment, the rack 106 can slide along the direction of the vertical rod 107, thereby improving the movement stability of the rack 106.

[0026] Specifically, an electric push rod 108 is fixedly installed on the inner wall of the driving box 103 , and a tooth plate 109 is fixedly connected to the movable end of the electric push rod 108 .

[0027] In this embodiment, the movable end of the electric push rod 108 drives the tooth plate 109 to gradually contact the rack 106, so that the tooth plate 109 and the rack 106 complete the meshing limit, thereby preventing the rack 106 from sliding.

[0028] When in use, the precooler is first moved to a suitable position through the mobile base 101, and then the transmission structure 104 inside the drive box 103 is started, so that the transmission structure 104 starts to drive the two gear shafts 105 to rotate through the built-in motor, and the rotation of the gear shaft 105 will drive the rack 106 to engage and move, so that the four racks 106 jointly drive the contact plate 110 to gradually descend, so that the contact plate 110 gradually contacts the ground and lifts the mobile base 101 off the ground, and then the electric push rod 108 is started, so that the movable end of the electric push rod 108 drives the tooth plate 109 to gradually contact the rack 106, so that the tooth plate 109 and the rack 106 complete the engagement limit, thereby avoiding the self-slip of the rack 106, so that the precooler is changed from the moving mode to the positioning mode, so that the precooler is positioned after the movement is completed.

[0029] In summary, the movable vacuum precooler, by setting up a movable structure 1, can drive the entire precooler to slide horizontally using the movable base 101, and then cooperate with the transmission structure 104 inside the drive box 103 to drive the rack 106 to move up and down through the gear shaft 105, so that the rack 106 can drive the contact plate 110 to gradually contact the ground and lift the movable base 101 off the ground, so that the precooler is positioned after the movement is completed, and the entire moving process no longer requires multiple people to carry it, making the entire moving process time-saving and labor-saving.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A movable vacuum precooling machine, comprising a movable structure (1), characterized in that: The mobile structure (1) comprises a mobile base (101), and a refrigeration unit (2), a pneumatic system (3), a hydraulic system (4), a vacuum system (5), a condenser (6) and a cold trap module (7) are arranged on the top of the mobile base (101); A driving box (103) is provided at the bottom end of the movable base (101) through a mounting recess (102); the inner wall of the driving box (103) is rotatably connected to two gear shafts (105) through a transmission structure (104); two racks (106) are meshed on the outer sides of the gear shafts (105); the bottom ends of the four racks (106) all extend below the driving box (103); and a contact plate (110) is fixedly installed between the bottom ends of the four racks (106).

2. A portable vacuum precooling machine according to claim 1, characterized in that: The refrigeration unit (2) comprises a refrigeration compressor, a shock-absorbing pipe, an oil separator, an oil filter, a gas-liquid separator, a heat preservation device, a liquid storage tank, a solenoid valve, an expansion valve and a pressure switch; the pneumatic system (3) comprises an air compressor, a pneumatic baffle valve and a pneumatic ball valve; and the hydraulic system (4) comprises a hydraulic pump station, a high-pressure oil pipe and a bidirectional hydraulic cylinder.

3. The movable vacuum precooling machine according to claim 1, characterized in that: The vacuum system (5) comprises a vacuum pump, a filter, a shock-absorbing pipe, a connecting pipeline and a connecting flange; the condenser (6) comprises a finned heat exchanger, a blower and a fan; and the cold trap module (7) comprises a cold trap evaporator, a cover plate inside the box, an air outlet channel, an air inlet channel and a drainage channel formed by the cold trap evaporator and the cover plate.

4. The movable vacuum precooling machine according to claim 1, characterized in that: A vertical rod (107) is fixedly mounted on the inner wall of the driving box (103), and the interior of the vertical rod (107) is slidably connected to the inner wall of the rack (106).

5. The movable vacuum precooling machine according to claim 1, characterized in that: An electric push rod (108) is fixedly mounted on the inner wall of the driving box (103), and a tooth plate (109) is fixedly connected to the movable end of the electric push rod (108).

Images